bench: Move string_creation into misc

benchmark/misc/string_creation.js

@@ -0,0 +1,16 @@
+
+var common = require('../common.js');
+var bench = common.createBenchmark(main, {
+  millions: [100]
+})
+
+function main(conf) {
+  var n = +conf.millions * 1e6;
+  bench.start();
+  var s;
+  for (var i = 0; i < n; i++) {
+    s = '01234567890';
+    s[1] = "a";
+  }
+  bench.end(n / 1e6);
+}

benchmark/string_creation.js

@@ -1,6 +0,0 @@
-
-
-for (var i = 0; i < 9e7; i++) {
-  s = '01234567890';
-  s[1] = "a";
-}